Activity: We have moved a client's Exch 2003 mailbox from one administrative group to another. We also moved the user object in AD to a different OU. The domain has not changed. The email address has stayed the same.
What is occuring now is when people reply to emails received prior to the move, the email is routed to the old server and an NDR is generated.
If you look at the properties of the email address in the mailbox, the email address field is blank, The display field has the canonical address with the old OU.
New emails are fine and are replied to correctly.
Has anyone ever experienced this problem?
Any help will be appreciated.